Peninsulas and Islands of East Asia

Shandong Peninsula
is mostly Mountainous and extends in Northwestern, Western, and Southwestern China
Leizhou Peninsula
located on the southwestern end of Guangdong, with the Gulf of Tonkin to the west
Macao peninsula
It is located at the south of Guangdong Province, on the tip of the peninsula formed by the Zhujiang (Pearl River) estuary on the east and the Xijiang (West River) on the west.
Korean Peninsula
It extends southwards for about 684 miles from continental Asia into the Pacific Ocean and is surrounded by the Sea of Japan to the south, and the Yellow Sea to the west, the Korea Strait connecting the first two bodies of water.
Hainan Island
Hainan Island is located in the South China Sea, separated from Guangdong's Leizhou Peninsula to the north by the shallow and narrow Qiongzhou Strait.
Hong Kong Island